diff options
Diffstat (limited to 'drivers/pci/pci.c')
-rw-r--r-- | drivers/pci/pci.c | 34 |
1 files changed, 15 insertions, 19 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 864e703cf73..315fea47e78 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c | |||
@@ -29,7 +29,17 @@ const char *pci_power_names[] = { | |||
29 | }; | 29 | }; |
30 | EXPORT_SYMBOL_GPL(pci_power_names); | 30 | EXPORT_SYMBOL_GPL(pci_power_names); |
31 | 31 | ||
32 | unsigned int pci_pm_d3_delay = PCI_PM_D3_WAIT; | 32 | unsigned int pci_pm_d3_delay; |
33 | |||
34 | static void pci_dev_d3_sleep(struct pci_dev *dev) | ||
35 | { | ||
36 | unsigned int delay = dev->d3_delay; | ||
37 | |||
38 | if (delay < pci_pm_d3_delay) | ||
39 | delay = pci_pm_d3_delay; | ||
40 | |||
41 | msleep(delay); | ||
42 | } | ||
33 | 43 | ||
34 | #ifdef CONFIG_PCI_DOMAINS | 44 | #ifdef CONFIG_PCI_DOMAINS |
35 | int pci_domains_supported = 1; | 45 | int pci_domains_supported = 1; |
@@ -522,7 +532,7 @@ static int pci_raw_set_power_state(struct pci_dev *dev, pci_power_t state) | |||
522 | /* Mandatory power management transition delays */ | 532 | /* Mandatory power management transition delays */ |
523 | /* see PCI PM 1.1 5.6.1 table 18 */ | 533 | /* see PCI PM 1.1 5.6.1 table 18 */ |
524 | if (state == PCI_D3hot || dev->current_state == PCI_D3hot) | 534 | if (state == PCI_D3hot || dev->current_state == PCI_D3hot) |
525 | msleep(pci_pm_d3_delay); | 535 | pci_dev_d3_sleep(dev); |
526 | else if (state == PCI_D2 || dev->current_state == PCI_D2) | 536 | else if (state == PCI_D2 || dev->current_state == PCI_D2) |
527 | udelay(PCI_PM_D2_DELAY); | 537 | udelay(PCI_PM_D2_DELAY); |
528 | 538 | ||
@@ -1409,6 +1419,7 @@ void pci_pm_init(struct pci_dev *dev) | |||
1409 | } | 1419 | } |
1410 | 1420 | ||
1411 | dev->pm_cap = pm; | 1421 | dev->pm_cap = pm; |
1422 | dev->d3_delay = PCI_PM_D3_WAIT; | ||
1412 | 1423 | ||
1413 | dev->d1_support = false; | 1424 | dev->d1_support = false; |
1414 | dev->d2_support = false; | 1425 | dev->d2_support = false; |
@@ -2247,12 +2258,12 @@ static int pci_pm_reset(struct pci_dev *dev, int probe) | |||
2247 | csr &= ~PCI_PM_CTRL_STATE_MASK; | 2258 | csr &= ~PCI_PM_CTRL_STATE_MASK; |
2248 | csr |= PCI_D3hot; | 2259 | csr |= PCI_D3hot; |
2249 | pci_write_config_word(dev, dev->pm_cap + PCI_PM_CTRL, csr); | 2260 | pci_write_config_word(dev, dev->pm_cap + PCI_PM_CTRL, csr); |
2250 | msleep(pci_pm_d3_delay); | 2261 | pci_dev_d3_sleep(dev); |
2251 | 2262 | ||
2252 | csr &= ~PCI_PM_CTRL_STATE_MASK; | 2263 | csr &= ~PCI_PM_CTRL_STATE_MASK; |
2253 | csr |= PCI_D0; | 2264 | csr |= PCI_D0; |
2254 | pci_write_config_word(dev, dev->pm_cap + PCI_PM_CTRL, csr); | 2265 | pci_write_config_word(dev, dev->pm_cap + PCI_PM_CTRL, csr); |
2255 | msleep(pci_pm_d3_delay); | 2266 | pci_dev_d3_sleep(dev); |
2256 | 2267 | ||
2257 | return 0; | 2268 | return 0; |
2258 | } | 2269 | } |
@@ -2284,21 +2295,6 @@ static int pci_parent_bus_reset(struct pci_dev *dev, int probe) | |||
2284 | return 0; | 2295 | return 0; |
2285 | } | 2296 | } |
2286 | 2297 | ||
2287 | static int pci_dev_specific_reset(struct pci_dev *dev, int probe) | ||
2288 | { | ||
2289 | struct pci_dev_reset_methods *i; | ||
2290 | |||
2291 | for (i = pci_dev_reset_methods; i->reset; i++) { | ||
2292 | if ((i->vendor == dev->vendor || | ||
2293 | i->vendor == (u16)PCI_ANY_ID) && | ||
2294 | (i->device == dev->device || | ||
2295 | i->device == (u16)PCI_ANY_ID)) | ||
2296 | return i->reset(dev, probe); | ||
2297 | } | ||
2298 | |||
2299 | return -ENOTTY; | ||
2300 | } | ||
2301 | |||
2302 | static int pci_dev_reset(struct pci_dev *dev, int probe) | 2298 | static int pci_dev_reset(struct pci_dev *dev, int probe) |
2303 | { | 2299 | { |
2304 | int rc; | 2300 | int rc; |